5-FC	5-fluorocytosine
5-FU	5-fluorouracil
BBB	blood–brain barrier
BF	bright-field
BSA	bovine serum albumin
CCK-8	cell Counting Kit-8
CD::UPRT	cytosine deaminase::uracil phosphoribosyltransferase
CNS	central nervous system
DMEM	Dulbecco’s Modified Eagle Medium
DMSO	dimethyl sulfoxide
EMT	epithelial–mesenchymal transition
FBS	fetal bovine serum
GBM	glioblastoma
GBO	GBM patient-derived organoids
H&E	hematoxylin–eosin
IF	immunofluorescence
MSC	mesenchymal stem cells
PBS	phosphate-buffered saline
PI	propidium iodide
PVDF	polyvinylidene difluoride
TBS	Tris-buffered saline
TMZ	Temozolomide
TRAIL	TNF-related apoptosis-inducing ligand
WT	Wild type
WHO	World Health Organization